Stephen Hawking's "A Brief History of Time" isn't exactly physics, but it is very entertaining.
"The Tao of Physics," by Fritjof Capra, is a wonderfully thought-provoking exploration of the common ground where science and mysticism meet.
If the quantum world interests you, here are a few other "weird science" suggestions:
"The Non-Local Universe: The New Physics and Matters of the Mind," Robert Nadeau, Minas C. Kafatos, Menas Kafatos.
"The Bit and the Pendulum: How the New Physics of Information is Revolutionizing Science," Tom Siegfried.
"Ultimate Zero and One: Computing at the Quantum Frontier," Colin P. Williams & Scott H. Clearwater.
I saved the best for last. If your library has this book, grab it and get ready for a wild, challenging mental trip. Very, very heavy stuff, not exactly summer reading, but you'll never forget it. The book is "The Physics of Quantum Information: Quantum Cryptography, Quantum Teleportation, Quantum Computation." It is edited by Dik Bouwmeester, Artur K. Ekert, and Anton Zeilinger. Wow.