Aspen is part of two groups of stylish and unique baby names: nature names and place-names. The name of a graceful tree in the poplar family with heart-shaped leaves so delicate they quiver in the gentlest breeze, Aspen is also the name of a trendy Colorado ski resort. Aspen started as a unisex name possibility but now is much more frequently worn by girls.

A unique combination of a surname feel and dainty femininity, Lacey is a favorite in the UK where it ranks in the Top 500. Likely derived from the name of a place in Normandy, it might occasionally be considered a diminutive to Wallace ("Welshman") or Larissa ("citadel").

It may surprise you to know that surname name Porter was fairly popular in the US in the 19th and early 20th centuries, then went underground for 40 years only to reemerge at the turn of this century and climb the ladder again.

Haven is a recently invented safe-harbor name that appeals to an increasing number of parents who don't want to voyage quite as far as Heaven.

Braxton entered the popularity ranks in 1985 and has been climbing steadily ever since. It has gained from the all-powerful X-factor, and perhaps also from the reality TV show, Braxton Family Values, featuring singer Toni and her sisters Traci, Towanda, Trina and Tamar. Though it might sound new, there was a prominent Confederate Civil War general named Braxton Bragg.

Kiki is one of the Coco-Gigi-Fifi-Lulu bohemian-type French nickname names from the turn of the last century, which have endless energy and sparkle. Artist Kiki Smith is its most well-known contemporary representative, and Kiki was the inspiring heroine of Zadie Smith's On Beauty. Kiki can be a nickname for any name beginning with the K sound, from Katherine to Christina to Kayla.

Kendra was once seen as a feminization of Kenneth -- but it's now firmly established as a standalone. American parents can't seem to make up their mind about it though: it was one of 2013's fastest-rising names, entering the Top 200 for the first time since 2000, but then it tumbled again.

Clarissa, the daintier version of Claire, has a long literary history of its own, having been featured in the novels of Samuel Richardson, Charles Dickens, and Virginia Woolf—Clarissa was the title character of Mrs. Dalloway—not to mention the 1990s teen sitcom, Clarissa Explains it All.

One of the hot two-syllable T names of the nineties (along with Tyler, Trevor, and Taylor), and well represented on soap operas; Tanner is still widely used, but its popularity is declining.

A variation of Greek Dionysius, itself derived from the name of the god of wine, revelry, and dance, Dion gives a nod to mythology while also having historical ties to a student of Plato, to a Greek mathematician and to 1st century writer and historian.

As a contemporary name, it came into popular use in the late 1950s and remained in the Top 1000 until 2006. It has dipped in and out of the charts since then, and is still given to a not insignificant 200 boys each year.

Serafina is a name so lovely it's worthy of an angel. But the more stylish spelling today is Seraphina.

Roberta has been one of the most successful feminization names, up at #64 in 1936. It's a name that's found all over children's lit, often nicknamed Bobbie or Robbie, though Bertie is another possibility. Notable bearers have included singers Roberta Flack and Roberta Peters--plus it's the birth name of Joni Mitchell.

A variation on the popular Colton, Colter has been climbing up the US charts since 2010. Given to around 1000 boys each year, it is now in the Top 500, and ticks the boxes for being a cool occupational name with rugged, Wild West vibes, and for giving the familiar nickname Col, or the alternative, Colt.

Leonard is the name of several saints, including one who is the patron saint of childhood, and another medieval saint who's the patron of prisoners--known for freeing prisoners he deemed worthy of God. Popular from 1900 to 1930, Leonard is perhaps more notable for those who dropped the name when they entered show biz than those who kept it: former Leonards include Roy Rogers and Tony Randall. Two musical Leonards did keep their names though--composer-conductor Leonard Bernstein and poet-singer Leonard Cohen. Leonard Woolf was the husband and publisher of great English novellist Virginia Woolf. These days, modern parents tend to prefer Leo or the romantic Italian Leonardo, especially since Leonard does not get pronounced with the trendy "Leo" sound.

Following in the footsteps of Weston, Braxton, Clayton, and Paxton, Daxton has been climbing the US charts since the late 2000s. While recent years have seen it decline slightly, it remains a Top 500 choice, with the cool possibility of nickname Dax.

Mercedes is one of the few names attached to luxury living that we can wholeheartedly recommend, it being a legitimate Spanish appellation stemming from one of the epithets given to the Virgin Mary--Santa Maria de las Mercedes, or Our Lady of the Mercies. The car, by the way was named after the eleven-year-old daughter of the Daimler company's French distributor in 1901.

The kind of nouveau macho name favored by NRA-leaning parents, Gunner could appeal to those who like other more military or gun inspired names, such as Hunter, Remington, and Cannon. It got a boost up the charts in 2009 when The Killers' frontman Brandon Flowers gave it to his son.

A recent addition to the Most Popular list, Bridger has the trendy two-syllables and 'er' ending, and a historical reference to Jim Bridger, a foremost nineteenth-century frontiersman, explorer, trapper, scout, and teller of tall tales.

While Larkin takes this name from bird to surname, there are actually more female Larkins these days than male, and it's a name that works as well for either gender. It has the literary connection to poet Philip Larkin too.

Like Greta, Gretchen is a German Margaret diminutive that has become an American quasi-classic, though not much used today, having dropped off the list in 2009. She was at her high point in the 1970s, making it into the top 200.