Part bookstore, part café, and part forest.

Frida Kahlo's childhood home, now a museum of her life and works.

66,000 pieces of art, donated by one of the world's richest men.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Three hundred years of preserved Spanish colonial history in San Antonio.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A bit of retro transportation flair preserved in the world's largest department store.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Macabre astrological automaton clock dating to the late 1400s.

The Habsburgs' royal collections of art and wonders.

Baroque celebration of the end of the Great Plague of Vienna.

A diminutive statue that was inspired by the sculptor's own daughter.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

The metal leaves on this tree are engraved with the names of Holocaust victims.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.