One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

This mansion oasis contains gardens, sculptures, and fountains just off the busy Plaça Kennedy in Sant Gervasi.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

An exotic wildlife habitat right off The Strip.

A collection of haunted objects and macabre oddities under one roof.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

These items are all that remain from the room used by the author during his second tour of the U.S.

"Try not to knock anything over!"

Like stepping into a spooky fairy-tale, this shop carries the dark ideas of artists and other makers.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

This historic patch of real estate offers a glimpse of colonial Boston.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

These whimsical works of art tell the story of the city's past and present.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

A hidden alley in urban Baltimore is a haven for graffiti artists.

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

Many famous English poets including Elizabeth Barrett Browning are laid to rest at this Swiss-owned cemetery in Florence.